This harmonic balancer is a new, aftermarket replacement part that has the following specifications:

  • Type - Solid Externally Balanced
  • OE part number - GM 6272225
  • Diameter - 8" (inches)
  • Width - 2-3/8" (inches)
  • Direct bolt on replacement
  • Built to strict quality control standards


A direct replacement. Please verify the dimensions against your existing balancer.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

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Vehicle Fit

  • 1975-1979 Chevy Blazer Full Size 4 Wheel Drive Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 Chevy C10 Truck Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 Chevy C20 Truck Harmonic Balancer V8 6.6L 400ci
  • 1977-1980 Chevy C30 Truck Harmonic Balancer V8 6.6L 400ci
  • 1970-1976 Chevy Caprice Harmonic Balancer V8 6.6L 400ci
  • 1974-1976 Chevy Chevelle Harmonic Balancer V8 6.6L 400ci
  • 1974-1976 Chevy El Camino Harmonic Balancer V8 6.6L 400ci
  • 1970-1976 Chevy Impala Harmonic Balancer V8 6.6L 400ci
  • 1974-1976 Chevy Malibu Harmonic Balancer V8 6.6L 400ci
  • 1974-1976 Chevy Monte Carlo Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 Chevy Suburban C10 Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 Chevy Suburban C10 Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 Chevy Suburban C20 Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 Chevy Suburban C20 Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 Chevy Suburban K10 Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 Chevy Suburban K10 Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 Chevy Suburban K20 Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 Chevy Suburban K20 Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 Chevy Van G-Series Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 GMC C1500 Truck Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 GMC C2500 Truck Harmonic Balancer V8 6.6L 400ci
  • 1977-1980 GMC C3500 Truck Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 GMC Jimmy Full Size 4 Wheel Drive Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 GMC K1500 Truck Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 GMC K2500 Truck Harmonic Balancer V8 6.6L 400ci
  • 1977-1980 GMC K3500 Truck Harmonic Balancer V8 6.6L 400ci
  • 1974-1976 GMC Sprint Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 GMC Suburban C1500 Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 GMC Suburban C2500 Harmonic Balancer V8 6.6L 400ci
  • 1975-1979 GMC Suburban K1500 Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 GMC Suburban K2500 Harmonic Balancer V8 6.6L 400ci
  • 1975-1980 GMC Van Harmonic Balancer V8 6.6L 400ci

This part replaces:

  • Hollander 309-157
  • OE # 6272225
  • Dorman 594-016
Part #: 1AEHB00063